import axios from "axios";
import { ElNotification, ElMessageBox, ElMessage, ElLoading } from "element-plus";
import { getToken } from "@/utils/auth";
import errorCode from "@/utils/errorCode";
import { tansParams, blobValidate } from "@/utils/common";
import cache from "@/plugins/cache";
import { saveAs } from "file-saver";
import useUserStore from "@/store/modules/user";
import { ContentTypeEnum } from "@/enums/httpEnum";
import { IRspObj, TErrorCode, TOtherCode } from "./type";
import useTagsViewStore from "@/store/modules/tagsView";

let downloadLoadingInstance: { close: () => void };
// 是否显示重新登录
export const isRelogin = { show: false };
function baseToa(str: string) {
    // 对字符串进行编码
    const encode = encodeURI(str);
    // 对编码的字符串转化base64
    const base64 = btoa(encode);
    return base64;
}
axios.defaults.headers["Content-Type"] = "application/json;charset=utf-8";
// 创建axios实例
const service = axios.create({
    // axios中请求配置有baseURL选项，表示请求URL公共部分
    baseURL: import.meta.env.VITE_APP_BASE_API,
    // 超时
    timeout: 30000,
});

// request拦截器
service.interceptors.request.use(
    (config) => {
        // 是否需要设置 token
        const isToken = (config.headers || {}).isToken === false;
        // 是否需要防止数据重复提交
        const isRepeatSubmit = (config.headers || {}).repeatSubmit === false;
        if (getToken() && !isToken) {
            if (config.headers) {
                config.headers["Authorization"] = "Bearer " + getToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
            }
        }
        // 当前功能的菜单id
        const pitchViews = useTagsViewStore().getPitchViews();
        const menuId = pitchViews && pitchViews["meta"] && pitchViews["meta"]["menuId"];
        // 当前操作的角色id
        const role = useUserStore().getRole();
        const roleId = role && role["roleId"];
        const Auth = {
            tempMenuId: menuId,
            tempRoleId: roleId,
        };

        config.headers["Auth"] = baseToa(JSON.stringify(Auth));

        // if (config.params) {
        //     config.params["tempMenuId"] = menuId;
        //     config.params["tempRoleId"] = roleId;
        // } else {
        //     const params = {
        //         tempMenuId: menuId,
        //         tempRoleId: roleId,
        //     };
        //     config["params"] = params;
        // }
        // if (config.data) {
        //     config.data["tempMenuId"] = menuId;
        //     config.data["tempRoleId"] = roleId;
        // } else {
        //     config["data"] = {
        //         tempMenuId: menuId,
        //         tempRoleId: roleId,
        //     };
        // }

        // get请求映射params参数
        if (config.method === "get" && config.params) {
            let url = config.url + "?" + tansParams(config.params);
            url = url.slice(0, -1);
            config.params = {};
            config.url = url;
        }
        if (!isRepeatSubmit && (config.method === "post" || config.method === "put")) {
            const requestObj = {
                url: config.url,
                data: typeof config.data === "object" ? JSON.stringify(config.data) : config.data,
                time: new Date().getTime(),
            };
            const sessionObj = cache.session.getJSON("sessionObj");
            if (sessionObj === undefined || sessionObj === null || sessionObj === "") {
                cache.session.setJSON("sessionObj", requestObj);
            } else {
                const s_url = sessionObj.url; // 请求地址
                const s_data = sessionObj.data; // 请求数据
                const s_time = sessionObj.time; // 请求时间
                const interval = 1000; // 间隔时间(ms)，小于此时间视为重复提交
                if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
                    const message = "数据正在处理，请勿重复提交";
                    console.warn(`[${s_url}]: ` + message);
                    return Promise.reject(new Error(message));
                } else {
                    cache.session.setJSON("sessionObj", requestObj);
                }
            }
        }
        return config;
    },
    (error) => {
        console.log(error);
        Promise.reject(error);
    }
);

// 响应拦截器
service.interceptors.response.use(
    (res) => {
        // 未设置状态码则默认成功状态
        const code: TErrorCode = res.data.code || 200;
        const otherCode: TOtherCode = res.data.code;
        // 获取错误信息
        const msg = errorCode[code] || res.data.msg || errorCode["default"];
        // 二进制数据则直接返回
        if (res.request.responseType === "blob" || res.request.responseType === "arraybuffer") {
            return res.data;
        }
        if (code === 401) {
            if (!isRelogin.show) {
                isRelogin.show = true;
                ElMessageBox.confirm("登录状态已过期，您可以继续留在该页面，或者重新登录", "系统提示", {
                    confirmButtonText: "重新登录",
                    cancelButtonText: "取消",
                    type: "warning",
                })
                    .then(() => {
                        isRelogin.show = false;
                        useUserStore()
                            .logOut()
                            .then(() => {
                                location.href = "/index";
                            });
                    })
                    .catch(() => {
                        isRelogin.show = false;
                    });
            }
            return Promise.reject("无效的会话，或者会话已过期，请重新登录。");
        } else if (otherCode === 500) {
            ElMessage({ message: msg, type: "error" });
            return Promise.reject(new Error(msg));
        } else if (otherCode === 601) {
            ElMessage({ message: msg, type: "warning" });
            return Promise.reject(new Error(msg));
        } else if (otherCode !== 200) {
            ElNotification.error({ title: msg });
            return Promise.reject("error");
        } else {
            return Promise.resolve(res.data);
        }
    },
    (error) => {
        console.log("err" + error);
        let { message } = error;
        if (message == "Network Error") {
            message = "后端接口连接异常";
        } else if (message.includes("timeout")) {
            message = "系统接口请求超时";
        } else if (message.includes("Request failed with status code")) {
            message = "系统接口" + message.substr(message.length - 3) + "异常";
        }
        ElMessage({ message: message, type: "error", duration: 5 * 1000 });
        return Promise.reject(error);
    }
);

// 通用下载方法
export function download(url: string, params: any, filename: string, config: any) {
    downloadLoadingInstance = ElLoading.service({
        text: "正在下载数据，请稍候",
        background: "rgba(0, 0, 0, 0.7)",
    });
    return service
        .post(url, params, {
            transformRequest: [
                (params) => {
                    return tansParams(params);
                },
            ],
            headers: { "Content-Type": ContentTypeEnum.FORM_URLENCODED },
            responseType: "blob",
            ...config,
        })
        .then(async (data: any) => {
            const isBlob = await blobValidate(data);
            if (isBlob) {
                const blob = new Blob([data]);
                saveAs(blob, filename);
            } else {
                const resText = await data.text();
                const rspObj: IRspObj = JSON.parse(resText);
                const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode["default"];
                ElMessage.error(errMsg);
            }
            downloadLoadingInstance.close();
        })
        .catch((r) => {
            console.error(r);
            ElMessage.error("下载文件出现错误，请联系管理员！");
            downloadLoadingInstance.close();
        });
}
// vxe-table通用下载方法
export function VxeDownload(url: string, params: any, filename: string) {
    downloadLoadingInstance = ElLoading.service({
        text: "正在下载数据，请稍候",
        background: "rgba(0, 0, 0, 0.7)",
    });
    return service({
        url,
        method: "post",
        headers: { "Content-Type": ContentTypeEnum.JSON },
        responseType: "blob",
        data: params,
    })
        .then(async (data: any) => {
            const isBlob = await blobValidate(data);
            if (isBlob) {
                const blob = new Blob([data]);
                saveAs(blob, filename);
            } else {
                const resText = await data.text();
                const rspObj: IRspObj = JSON.parse(resText);
                const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode["default"];
                ElMessage.error(errMsg);
            }
            downloadLoadingInstance.close();
        })
        .catch((r) => {
            console.error(r);
            ElMessage.error("下载文件出现错误，请联系管理员！");
            downloadLoadingInstance.close();
        });
}

export default service;
